LT1-LT4 Modifications 1993-97 Gen II Small Block V8

crank case pressure

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Old Oct 25, 2012 | 10:20 AM
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Default crank case pressure

How can I get rid of crank case pressure. Turboed Lt keeps spitting oil everywhere I think out of turbo. Were can it be coming from!!??
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Old Oct 25, 2012 | 10:22 AM
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And why it's two weeks old fresh out the box
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Old Oct 25, 2012 | 10:28 AM
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You should probably post some more details here. All we know is you have a turbo'd LT1...I think.
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Old Oct 25, 2012 | 04:31 PM
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Full bolt ons cc 306 cam ported stock heads 202 valves. Is it boosting to much or was the turbo not properly broke in. Maybe turbo seal??
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Old Oct 25, 2012 | 08:49 PM
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Could be coming from the valve covers ? dip stick tube ? you could run a vacuum pump to take care of the crankcase pressure.
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Old Oct 25, 2012 | 11:44 PM
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Was coming from valve covers fixed that. Does come out of dipstick under boost.. How do I run a vacuum pump and were do I find one.
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Old Oct 26, 2012 | 03:47 AM
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do you have breather on each valve cover....probably not getting rid of enough of the pressure if it is pushing dip stick out. I am having issue also and gonna add another breather, but before I figured it out I blew my front and rear seals out......... come to find out. Its not bad to where I loose alot of oil but dont like the fact less than 5k on new motor and a oil leak.

is it a new motor or a new build? did it ever ping or anything. When I was stock and if it pinged I had broked piston lands and it would push the dipstick out.
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Old Oct 26, 2012 | 10:38 AM
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Never a ping or oil leak until he started boosting now there's a oil leak. 150xxx on bottom end 500 miles on all fresh gaskets 80 miles on turbo looks to be coming out of turbo as well as the dip stick
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Old Oct 26, 2012 | 05:21 PM
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I use a vacuum pump
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Old Oct 26, 2012 | 05:27 PM
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GZ Motorsports sells a vacuum pump for our cars. I would post a link but I'm not sure if they are a sponsor.
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Old Nov 18, 2012 | 06:51 AM
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Badhawk does the GZ Motorsports pump for our cars fit where the alt should go? I need one as well but I have the SpeedInc accessory drive kit and my alt is relocated to drivers side lower and has an idler where the alt used to be. If the GZ would bolt in place where the alt used to be it would be perfect. Also doe the GZ pump work with the factory serpentine belt?
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Old Nov 18, 2012 | 01:08 PM
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Originally Posted by 97Z28SS
Badhawk does the GZ Motorsports pump for our cars fit where the alt should go? I need one as well but I have the SpeedInc accessory drive kit and my alt is relocated to drivers side lower and has an idler where the alt used to be. If the GZ would bolt in place where the alt used to be it would be perfect. Also doe the GZ pump work with the factory serpentine belt?
IF you go to their website they show you a few options for mounting under sbc and run a separate belt for the pump.
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